Fedup! Moved house, Fibre speeds capped at half speed (40meg)

I have moved house, i had fibre unlimited which i organised to get switched over to my new home on friday 8th June, Fibre was indeed switched over fairly quickly and i was online in my new house by the afternoon of the 8th.

First thing i did was try a speed test, which came back slightly disappointingly lower than 40mb (my estimate was 66 to 80mb)I'm about the same distance from the cabinet as i was in my old property so i expected similar speeds (80/20) ... anyway, i logged onto chat and explained the issue .. one fella told me i have to log a line fault and may be charged £65 if the fault was found to be inside my property, but then nothing happened, he was supposed to run line test and sent me a txt message to say plug in router here etc etc then nothing, no further contact or messages.

Next day i got back on to chat and someone else tells me that my speed was capped at 40/10 ... which he would reset, gret i thought ... untill later that night nothing had changed, the connection is still exactly the same.

Next day i got back on to chat and complained about previous experiences, the advisor tells me that i must have a line issue as i'm 100% not capped at half speed ... arranges a line test and told me to run through a broadband issue form on the site which will arrange a Openreach tech to investigate .... It's now two days later and i havnt heard a thing, I cant seemt to find anything mentioning an issue in my account pages !!!!!!!!!!!!!!!!!!!!!!!!!

I have ran through the BT Wholesale speedtest site which reports as the attached pic -

My router reports SNR values ranging from 4db - 6db for upload and download so i doubt there are any line issues.

My router is connected directly to the master socket.

I've tried rebooting it, etc etc etc lol

Can someone please help me? i'm struggling to understand why it's taking so long to sort this out and why each advisor is making it so difficult!